Sulfadiazine Sodium Bulk API from Mexico
Sulfadiazine sodium is a water-soluble salt form of the sulfonamide antibiotic sulfadiazine, listed specifically under HTS 2935.90.4200. Used in toxoplasmosis treatment and burn wound prophylaxis, this bulk active pharmaceutical ingredient (API) qualifies as a Chapter 29 sulfonamide drug. The sodium salt classification follows Chapter Note 5(C)(1) placing it with the parent organic compound.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include FDA import permit and reference to approved ANDA/NDA for sulfadiazine products to clear customs efficiently
• Verify sodium content declaration as salts must be classified with parent acid per Chapter 29 note 5(C)(1)